Step-by-step explanation:
Correlation coefficient is a quantitative measure used to determine the statistical relationships between two or more random variables or observed data values. Here -1.0 states the perfect negative correlation, while 1.0 states the perfect positive correlation. ...
Find an expression which represents the sum of (-3x-4y)(−3x−4y) and (x+3y)(x+3y) in simplest terms
Answer:
The sum of (−3x−4y) and (x+3y) in simplest terms will be:
[tex]\left(-3x-4y\right)+\left(x+3y\right)=-2x-y[/tex]
Step-by-step explanation:
Given
(−3x−4y)(x+3y)Finding the sum of (−3x−4y) and (x+3y)
[tex]\left(-3x-4y\right)+\left(x+3y\right)[/tex]
[tex]=-3x-4y+x+3y[/tex]
[tex]=-3x+x-4y+3y[/tex]
[tex]=-2x-4y+3y[/tex]
[tex]=-2x-y[/tex]
Therefore, the sum of (−3x−4y) and (x+3y) in simplest terms will be:
[tex]\left(-3x-4y\right)+\left(x+3y\right)=-2x-y[/tex]
Simplify the expression below: 4 + 2³ - | -4 |
Answer:
8
Step-by-step explanation:
help!
Find the total cost to the nearest cent.
$24 shirt; 6% tax
Answer:
The tax itself would be $1.44 and the total would be $25.44
Step-by-step explanation:
You multiply 24 by 6% (0.06) and get 1.44 then you add that to the original cost (24) and get $25.44.
Total cost will be $25.44.
What is Percentage?
A relative value indicating hundredth part of any quantity is called percentage.
Given that;
Cost of shirt = $24
Tax = 6%
Now,
The value of tax = 24 × 6%
= 24 × 6/100
= 1.44
So, Total cost = $24 + $1.44
= $25.44
Thus, Total cost will be $25.44.
Learn more about the percentage visit:
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Describe in words what the domain and range of this
function are.
Answer:
Your Domain and range would be the same, and the answer to it is,
Step-by-step explanation:
-∞<x<∞
12. Find the area of shaded portion in
D 11 cm
C С
13.5 cm
A
B
15 cm
Step-by-step explanation:
There's no shaded portion.
Answer:
there not shade portions
Write an equation of the line that passes through (3,8) and is perpendicular to the line y=5x-4
Help even tho it’s multiple choice make sure you are correct... I beg you lol
Answer:
The equation of the line is:
[tex]y=(-\frac{1}{2})x+1[/tex]
Therefore, option a is the correct answer.
Step-by-step explanation:
Given the points
(-2, 2)(4, -1)Finding the slope
[tex]\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\left(x_1,\:y_1\right)=\left(-2,\:2\right),\:\left(x_2,\:y_2\right)=\left(4,\:-1\right)[/tex]
[tex]m=\frac{-1-2}{4-\left(-2\right)}[/tex]
[tex]m=-\frac{1}{2}[/tex]
As the point-slope form of the equation of the line is
[tex]y-y_1=m\left(x-x_1\right)[/tex]
where m is the slope
substituting the values [tex]m=-\frac{1}{2}[/tex] and the point (-2, 2)
[tex]y-y_1=m\left(x-x_1\right)[/tex]
[tex]y-2=\frac{-1}{2}\left(x-\left(-2\right)\right)[/tex]
[tex]y-2=\frac{-1}{2}\left(x+2\right)[/tex]
[tex]y-2=-\frac{1}{2}\left(x+2\right)[/tex] ∵[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{b}=-\frac{a}{b}[/tex]
Add 2 to both sides
[tex]y-2+2=-\frac{1}{2}\left(x+2\right)+2[/tex]
[tex]y=(-\frac{1}{2})x+1[/tex]
Hence, the equation of the line is:
[tex]y=(-\frac{1}{2})x+1[/tex]
Therefore, option a is the correct answer.
6. An ostrich cannot fly, but it is able to run fast. Suppose an ostrich runs east for 7.95 s and then runs 161 m south, so that the magnitude of the ostrich's resultant displacement is 226 m. Calculate the magnitude of the ostrich's eastward component.
Answer:
159 m
Step-by-step explanation:
From the information given:
It was stated that if the ostrich ran towards the east direction in 7.95 s, let say the distance from the starting point is O towards the east side E, let called the distance towards the east side to be OE.
Again, the ostrich then runs in the south direction for 161 m, let the distance be OS.
Also, let the magnitude of the resultant displacement between the east direction to the south direction be ES = 226m.
We are to find, the magnitude of the ostrich's eastward component.
i.e. The distance traveled from the center to the east direction within the time frame of 7.95 s.
Using the Pythagoras rule:
ES² = OE² + OS²
226² = OE² + 161²
226² - 161² = OE²
OE² = 226² - 161²
OE² = 51076 - 25921
OE² = 51076 - 25921
OE² = 25155
[tex]OE = \sqrt{25155}[/tex]
OE = 158.60 m
OE ≅ 159 m
Thus, the magnitude of the ostrich's towards the eastward component. = 159 m.
For each 50 mm of coloured fabric Nick uses to make his curtains, he also uses 10 cm of white fabric. Express the amount of white fabric to coloured fabric as a ratio in its simplest form.
Answer:
5/1
Step-by-step explanation:
Step-by-step explanation: you just put 50/10 and divide by the common number, 5, which gets you 5/1
Suraj took a slice of pizza from the freezer and put it in the oven. The pizza was heated at a constant rate.
The table compares the pizza's temperature (in degrees Celsius) and the time since Suraj started heating it (in minutes).
Time (minutes) Temperature (degrees Celsius)
444 252525
666 404040
888 555555
How long did it take the pizza to reach 100100100 degrees Celsius?
Answer:
The pizza was heated at a constant rate. The table compares the pizza's temperature (in degrees Celsius) and the time since Suraj started heating it (in minutes). Time(Minutes) Temperature( degree .
Answer:
14 did it on khan
Step-by-step explanation:
proof:
A number line graph is shown: A number line is shown from negative 8 to 8 at increments of 1. A circle is shown at negative 4. The entire portion of the number line to the right of negative 4 is shaded Based on the graph, which inequality is correct for a number that is to the right of −4? −2 −4 1 −4
Answer:
i think its A
Step-by-step explanation:
(^///^)(^///^)(^///^)
Answer: The answer is A
Step-by-step explanation: BC i used sum weird website where i have to show my dog i think its buzz feed and they said my age and still got it wrong for the answer lol ion know ur welcome woo
its geometry can someone please help me
Answer:
X=12
Step-by-step explanation:
since the sum of the interior angles in a triangle is 180 so 5*12= 60
60*3= 180°
hope that helped
3(m + 4) = 36
What is m
Answer:
m = 8
Step-by-step explanation:
Step 1: Write the equation neatly. {3 (m + 4) = 36}
Step 2: Distribute 3 to m and 4. {3 x m = 3m} {3 x 4 = 12}
Step 3: Write the new equation. {3m + 12 = 36}
Step 4: Subtract 12 from both sides. {12 - 12 = 0} {36 - 12 = 24}
Step 5: Write the new equation. {3m = 24}
Step 6: Divide 3 from both sides. {3m / 3 = m} {24 / 3 = 8}
Step 7: Write the new equation and you get your answer. {m = 8}
What’s the answer to this question
Answer:
3
Step-by-step explanation:
its 3 because its half of the ratio 6
the current balance in hayley's checking account is overdrawn. her current balance is -$75.34. hayley gets paid at the end of the week $185. how much money will be in hayley's account after she gets paid?
I'M GETTING GRADED ON THIS, PLEASE HELP!!!!
Analyze the function below. Then explain why the function is classified as even, odd, or neither.
Answer:
I'm reallly sorry if this is wrong, but I believe it is neither
Step-by-step explanation:
Odd and even functions need to exhibit some sort of reflection symmetry across the x axis (i think--we are learning this rn) and the graph does not seem to show this so i believe it is neither... i could be wrong thooughh
An office manager has $11,000 to spend on new equipment. He planned to purchase 400 chairs for $72 each. He completed the calculations and concluded that there would be plenty of money left to buy additional equipment. Answer problems 4–6. LOADING... Click the icon to view the calculations. 4. What does the office manager do to support his thinking? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. He does a calculation to find the cost of 400 chairs and compares the amount to $ nothing. (Type a whole number.) B. He does a calculation to find the cost of the additional equipment. C. He does a calculation to find the cost of 72 chairs. D. He does a calculation to find the difference between the cost of 400 chairs and the cost of the additional equipment and compares the amount to $ nothing. (Type a whole number.)
Answer:
A. He does a calculation to find the cost of 400 chairs and compares the amount to $11,000Step-by-step explanation:
Step one:
given data
total money =$11,000
number of chairs to be purchased= 400
cost per chair=$72
Step two:
the cost of 400 chairs will be
400*72= $28,800
there will be a deficit of
=28,800-11,000
=$17,800.
This shows that the office manager does not have enough funds for the purchase.
Hence to support his thinking,
A. He does a calculation to find the cost of 400 chairs and compares the amount to the amount he has.
Updated/Repost.
Given: 3x + 2y + 7 = 5x +3y +10
Prove: m = -2
(Hint: slope)
Answer:
3x + 2y = -2
Reason: This is because 3x + 2y = 10 for the variable y. 3x-10= 2y.
Since
_____________________________________________________
3x + 7 = -2
Reason: This is because 3x+10= 2y
_____________________________________________________
Solve the system of equations and choose the correct answer from the list of options.
d + e = 15
-d + e = -5
Label the ordered pair as (d, e).
O (0, 0)
O (10,-5)
O (5, 10)
O (10,5)
9514 1404 393
Answer:
d. (10, 5)
Step-by-step explanation:
Add the two equations, and you get ...
2e = 10
e = 5
Solve the first one for d and you have ...
d = 15 -e
d = 15 -5 = 10
So, the solution is ...
(d, e) = (10, 5) . . . . . matches the last choice
_____
Check
d + e = 10 + 5 = 15
-d + e = -10 +5 = -5
PLEASE HELP ME PLEASEEEEEE THANK YOU SO MYUCHH
Full page? In exchange for something i'll do it all.
1.
5:15
7: 21
9: 27
11: 33
2.
1: 20
2: 40
3: 60
80:160
3.
0: -25
1: -23
2: -21
3: -19
4. x = -(1/3)
5. x = 0
6. y = 16
7. y = -17
on a math test the students are given a right triangle one ofbthe acute angles has a measure of 41 one student says that the measure if the other acute angle is 139 what is the measure of the other angle what error might the student have made
The correct measure of other angle should be less than 49°.
It is given that a student measures that one acute angle has a measure of 41° and other acute angle has measure of 139°.
We have to find out that while finding measure of other angle what error might student have made.
What do you mean by an acute angle ?
An acute angle is an angle which measures less than 90 degrees. i.e., ∠45°.
As per the question ;
1st angle = 41 °
we know that sum of acute angles of a triangle should be less than 90°.
Let's assume other angle be x.
So ;
x + 41° < 90°
x < 90° - 41°
x < 49°
So , the student had measured ∠2 wrongly because sum of acute angles of a triangle should be less than 90°.
Thus , the correct measure of other angle should be less than 49°.
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16. Crayola makes 2400 crayons in 4 minutes. How many crayons can they make in 15 minut es? pls help U_U
Answer:
9000
Step-by-step explanation:
they make 600 every minute so in 15 minutes they would make 9000
Answer:
They can make 9000 crayons in 15 minutes.
Step-by-step explanation:
Figure out the ratio:
[tex]\frac{2400}{4}[/tex]
Simplify it to get the total number of crayons that they can make in one minute.
2400/4 = 600
They can make 600 crayons per minute.
Now, you should have a proportion.
[tex]\frac{600}{1}[/tex]
Now, multiply the denominator and numerator by 15 because whatever you do to the denominator you have to do to the numerator.
You should now have your answer.
[tex]\frac{9000}{15}[/tex]
Crayola can make 9000 crayons in 15 minutes.
question in attachment!
Answer:
y = 2x - 3
Step-by-step explanation:
PLEASE HELP:URGENT
Ms Tyler has a rectangular patio that she would like to decorate with string lights as shown in the diagram. If she plans to string the lights around the perimeter and across both diagonals how many feet of lights will she need? (READ CAREFULLY)
A: 47 feet
B: 60 feet
C: 80 feet
D: 13 feet
Answer:
the answer is b
Step-by-step explanation:
the answer would be b because you add 12+12 then 5+5 and if you add those together it would be 34 then you would add the diagonal lines together which would be 20 so then you would add 34 plus 26 and then you would get 60 which is b
IF I'M WRONG I APOLOGIZE BUT I'M ALMOST 100% SURE THAT'S THE ANSWER
50 points!!! YO can someone solve this I don't get it ∴∞∧∞∴
xy=4
2x-y+2=0
Help!! Will give the almighty great crown
Answer:
G and D
Step-by-step explanation:
look closelyfind the coordinate linesgo seei need more help plssss❤️❤️
Answer:
a=0."3636"
b=repeating.(explanation down below)
Step-by-step explanation:
a)decimal
=16
44
=4
11
=0."3636"
b) the decimal is repeating. the term terminating means having an end or to stop. the current decimal is repeating as it channels a continuous cycle 0.3636... hence concluding that it is repeating(or recurring)
What is the solution to the linear equation? d – 10 – 2d + 7 = 8 + d – 10 – 3d d = –5 d = –1 d = 1 d = 5
Answer:
1,1/7 or 0.85
Step-by-step explanation:
d-10-2d+7=8+d-10-3d=-5d=-d=d=5
in mathematics there is nothing like 1d,it is d
re-arrange
d-2d-d+3d+5d+d-d=10-7+8-10+5
7d=6
d=6/7
d=1,1/7 or 0.85
Answer:
D=1
Step-by-step explanation:
just took a test with this question in it.
What’s -2*2/5? I got -1/5 but how do i get it out of a fraction?
Answer:
It's actually -4/5 if you are multiplying -2 times 2/5
-1/5 out of a fraction= -0.2
-4/5 out a fraction= -0.8
Step-by-step explanation:
you basically divide the numbers which turns into a decimal
i will give a thanks 5 stars and i will give you the brainliest Gwen mows 1/4 acre in 3/4 hours. what fraction is used to find the unit rate, in acres per hour?
A. 3/4
B. 1/4/3/4
C. 4/3
D. 3/4/1/4
Answer:
D
Step-by-step explanation: